Solar global UV (280–380nm) radiation and its relationship with solar global radiation measured on the island of Cyprus

C.P. Jacovides, V.D. Assimakopoulos, F.S. Tymvios, K. Theophilou and D.N. Asimakopoulos

Energy, 2006, vol. 31, issue 14, 2728-2738

Abstract: We report the first observations of solar global UV (280–380nm) radiation on the island of Cyprus obtained during an ongoing joint research project between the University of Athens and the Meteorological Service of Cyprus. Hourly global UV (Guv) and global (Gh) solar irradiances are measured and the relationship between the two radiant fluxes is investigated at Athalassa, Cyprus (35°15′N, 33°40′E, 165m above MSL). These data are used to determine the temporal variability of the percentage ratio of solar global UV to solar global irradiation (Guv/Gh) and its dependence on various atmospheric conditions. Analyzing the data set, an inverse correlation between ozone column amount and the precise UV/Global ratio was found, which can be rather attributed to the change of various atmospheric parameters than the ozone column. The analysis of hourly percentage ratio values reveals a definite daily pattern with lower values during sunrise/sunset and higher values around noon. The variation of the percentage ratios (Guv/Gh) ranges from 3.95±0.29% in September to 2.92±0.42% in August for hourly values, while for daily values, the variation is between 2.85±0.32% in August and 3.68±0.1% in September, with annual mean values of 3.33±0.21% for hourly and 3.19±0.17% for daily data. Finally, the present data reveals a seasonal contribution of the aerosol extinction on the precise (Guv/Gh) ratio values.

Keywords: Solar global UV radiation; Solar global radiation; Percent UV ratio; Aerosol extinction; Cyprus island (search for similar items in EconPapers)
Date: 2006
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Citations: View citations in EconPapers (15)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:31:y:2006:i:14:p:2728-2738

DOI: 10.1016/j.energy.2005.11.021

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